diff --git a/frontend/js/projects.js b/frontend/js/projects.js
index 39e5d30..f631625 100644
--- a/frontend/js/projects.js
+++ b/frontend/js/projects.js
@@ -13,6 +13,14 @@ const DATA = {
         url: 'https://git.cactoz.su/cacto/home_automatization',
         linkLabel: 'открыть',
       },
+      {
+        name: 'home_automatization_controllers',
+        description:
+          'Прошивка ESP32 для зоны «Гроубокс»: датчик DHT22 и три реле-актуатора (свет, полив, вентиляция), общается с платформой по MQTT.',
+        tags: ['C++', 'ESP32', 'Arduino', 'MQTT', 'DHT22'],
+        url: 'https://git.cactoz.su/cacto/home_automatization_controllers',
+        linkLabel: 'открыть',
+      },
       {
         name: 'cactoz.su',
         description:
@@ -35,6 +43,14 @@ const DATA = {
         url: 'https://git.cactoz.su/cacto/home_automatization',
         linkLabel: 'open',
       },
+      {
+        name: 'home_automatization_controllers',
+        description:
+          'ESP32 firmware for the grow-box zone: a DHT22 sensor and three relay actuators (light, watering, ventilation), talking to the platform over MQTT.',
+        tags: ['C++', 'ESP32', 'Arduino', 'MQTT', 'DHT22'],
+        url: 'https://git.cactoz.su/cacto/home_automatization_controllers',
+        linkLabel: 'open',
+      },
       {
         name: 'cactoz.su',
         description:
diff --git a/frontend/projects.html b/frontend/projects.html
index 2984edd..4619bbc 100644
--- a/frontend/projects.html
+++ b/frontend/projects.html
@@ -59,6 +59,20 @@
               <li class="tag">MQTT</li>
             </ul>
           </li>
+          <li class="project-card">
+            <div class="project-card__header">
+              <div class="project-card__name"><span class="project-card__perms">drwxr-xr-x</span> home_automatization_controllers</div>
+              <a href="https://git.cactoz.su/cacto/home_automatization_controllers" target="_blank" rel="noopener">открыть →</a>
+            </div>
+            <p class="project-card__desc">Прошивка ESP32 для зоны «Гроубокс»: датчик DHT22 и три реле-актуатора (свет, полив, вентиляция), общается с платформой по MQTT.</p>
+            <ul class="tag-list">
+              <li class="tag">C++</li>
+              <li class="tag">ESP32</li>
+              <li class="tag">Arduino</li>
+              <li class="tag">MQTT</li>
+              <li class="tag">DHT22</li>
+            </ul>
+          </li>
           <li class="project-card">
             <div class="project-card__header">
               <div class="project-card__name"><span class="project-card__perms">drwxr-xr-x</span> cactoz.su</div>